Apparatus for the reclaiming of used printers&#39; roller composition



T. H. GROZIER. APPARATUS FOR THE RECLAIMING 0? USED PRINTERS ROLLER COMPOSITION.-

APPLICATION FILED NOV-l0,1919- I A Patent'd June 22, 1920.

3 SHE ETS-SHEET I.

M z 0 Mr m T T. H. 'GROZIIER.

APPARATUS FOR THE RECLAIMING OF USED PRINTERS ROLLER COMPOSITION.

APPLICATION FILED NOV. 10. I919.

Patented'June 22, 1920.

3 SHEETS-SHEET 2.

. awventoz TE Grazia;

T. H. GROZIER.

APPARATUS FOR THE RECLAIMINGOF USED -PR!NTERS ROLLER COMPOSITION.

APPLICATION FILED NOV. I0. 1919.

13445270 Patented June 22, 1920.

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T17 G 'mzz'ez' awn MA UNITED STATES PATENT] OFFICE.

THOMAS HAMILTONGROZI'ER, or LONGUEVILLE, NEAR SYDNEY, NEW SOUTH WALES, AUSTRALIA.

APPARATUS FOR THE RECLAIMING OF USED PRINTERS ROLLER COMPOSITION.

- Specification of Letters Patent.

Patented June 22,1920.

Original application filed June 13, 1918, Serial'No. 239,822, new Patent No. 1,321,789. Divided andthis application filed November 10, 1919.

To all whom it may concern Be it known that I, THOMAS HAMILTON Gnozmn, a subjectof Great Britain, residing at Ventnor, Mary street, Longueville, near Sydney, in the State of New South Wales,

Commonwealth of Australia, have invented certain new and useful Improvements in Apparatus for the Reclaiming. of Used Printers Roller Composition, of which the fol lowing is a specification.

This invention relates to apparatus for the reclaiming of used printers roller composition, and has for its object the produc tion-of a device for the speedy and efficient separation and recovery of the unspent portion of the composition from the residuum.

In known processes, the used composition is treated in either a closed jacketed vessel in which steam is supplied to the jacket to heat the vessel and its contents, to melt the liquefiable portion thereof, or it is treated in a closed vessel wherein the heating of the mass is effected by supplying saturated steam to the contents in order to accomplish the same object.

In these above mentioned treatments considerable pressure of steam is required to efii- -ciently and expeditiously carry out the operation of liqueficationj This necessitates strong and expensive apparatus both for the steam boiler used for the purpose, and for the apparatus itself inwhich the treatment of the composition is carried out.

Apart from the objections above mentioned in respect to the cost of the providing of strong vessels to generate and to contain the high pressure steam, in the latter -mode of treatment, viz :the direct application of saturated steam to the contents, the water of condensation produced by such treatment, causes a waterlogging of the liquefied composition and the excess moisture thus added is required to be driven off in order to render'the composition fit-for commercial use. The presence of the excess mois ture above referred to invariably causes mold and rot to attack the composition so waterlogg'ed.

In each casetoo, the liquefiable and the unliquefiable portions of thecomposition are intimately associated at the completion of the operations, and the unliquefiable portion is required to be separated from the liquid ready handling and Serial No. 337,044.

portion in a more or less cumbersome and expensive manner. 56

By the use of my process the above named ob ect1onable features are'eliminated. The used composition is so treated that the unspent liquefiable portion is rapidly and efliciently separated by liquefication'from the spent unliquefiable portion and this is efi'ected without the addition to the recovered composition of any surplus moisture. Furthermore, the liquefiable portion is separated from the residuum.

My process as herein described (which forms the subject matter of my copending application 299,822, filed June 13,1918, of which the present case is a division, which parent case has matured into Patent No. 1,321,789 November 11, 1919) consists in the application of superheated low pressure steam whereby apparatus of light and consequently cheap construction is used to eifect the liquefication of the unspent portion, with its consequent separation from the residuum of the composition. It also refers to the casting or molding into small units or blocks of the recovered liquid composition for orrapid seasoning. 1 A form of apparatus forming the sub'ect matter of the present case is illustrate in the accompanying sheets of explanatory drawings.

Figure 1 is a perspective view of the apparatus used for the thermal treatment of the used composition.

Fig. 2 is a perspective fragmentary plan of the casting mold tray and also showing one unit of the material removed from its mold In this view'the casting mold tray is shown supplied with a water cooling device or jacket, to expedite cooling of the contents of the molds. Y I

Fig. 3 is a verticalsection of one form of 95 the apparatus.

Fig. 4 is a perspective view of one of the cages or foraminous receptacles in which the catchment tray 6 is vaporized by the heat of the contained superheated steam in the chamber. Further, owing to the lowness of the pressure of the steam employed, the apparatus used is cheaply constructed.

y the molding of the resultant composition into small units, ease of handlin is effected and the material so cast is foun to season or mature more readily than if cast in large pieces.

It is obvious that the process above described is useful for the separation of liquefiable from unliquefiable portions in like or kindred substances or compositions, wherein it is desirable to effect such separation without the addition to the liquefied portion of waters of condensation.

I claim:

1. Apparatusfor the purpose specified, comprising a closed vessel or chamber provided with a perforated receptacle or cage for the reception of used printers roller composition or analogous substance, heated with superheated steam of low pressure, ad-

mitted thereto in' a series of streams or jets,

r with the object of liquefying the recoverable portion thereof and the retention within the said cage or receptacle of the solid orunliquefied portion for future removal, means for draining the chamber and apparatus comprising a cover or lid and moisture catchment adapted to intercept and vaporize the water of condensation, and such cover or lid provided with an exit port to permit of the escape of such vapors to the atmosphere, substantially as described.

2. In combination, a closed vessel provided with one or more perforated cages or receptacles for the reception of used printers roller composition, arranged therein, a closure lid for such receptacle, adapted to vaporize intercepted waters of condensation and to discharge such vapor into the atmosphere, a discharge cook or valve, and a steam service, for leading to the interior of the vessel a supply of superheated steam of low pressure, as and for the purposes described and illustrated.

3. In apparatus for the purposes described, a closure lid comprising a cover, furnished with a vapor exit at its apex, and a water catchment and vaporizer positioned below it, consisting of a dished vessel, wherein are formed, above its lower part, a series of ports for the passage of exhaust steam from the apparatus to the closure cover for the retention and vaporizing of the water of condensation trapped therein, substantially as described.

In testimony whereof I aflix my signature.

THOMAS HAMILTON GROZIER. 

